Revision 6120585 of "2456 Palamedes" on simplewiki

{{Infobox planet
 | minorplanet=yes
 | background=#FFFFC0
 | name=2456 Palamedes
 | discovery_ref=[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
 | discoverer=[[Purple Mountain Observatory]]
 | discovered=30 January 1966
 | alt_names=1966 BA1
 | mp_category=[[Trojan asteroid|Jupiter Trojan]]
 | orbit_ref=<ref name="lowell">{{Cite web |url=ftp://ftp.lowell.edu/pub/elgb/astorb.html |website=astorb |title=The Asteroid Orbital Elements Database |publisher=[[Lowell Observatory]]}}</ref><ref name="jpldata">{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2456;cad=1 |title=2456 Palamedes (1966 BA1) |work=[[JPL Small-Body Database]] |publisher=[[NASA]]/[[Jet Propulsion Laboratory]] |access-date=15 April 2016}}</ref>
 | epoch=13 January 2016 ([[Julian day|JD]] 2457400.5)
 | semimajor={{Convert|5.12974|AU|Gm|abbr=on}}
 | perihelion={{Convert|4.75165|AU|Gm|abbr=on}}
 | aphelion={{Convert|5.50783|AU|Gm|abbr=on|lk=on}}
 | eccentricity=0.073706
 | period=11.62 [[Julian year (astronomy)|yr]] (4243.66 [[Julian year (astronomy)|d]])
 | inclination=13.9075°
 | asc_node=327.393°
 | arg_perihelion=93.744°
 | mean_anomaly=157.743[[Degree (angle)|°]]
 | avg_speed=13.12 km/[[second|s]]
 | dimensions=91.7 km
 | mass=8.1{{e|17}} kg
 | density=2.0 g/cm³
 | surface_grav=0.0256 m/s²
 | escape_velocity=0.0485 km/s
 | sidereal_day=
 | axial_tilt=
 | pole_ecliptic_lat=
 | pole_ecliptic_lon=
 | spectral_type=
 | abs_magnitude=9.3
 | albedo=0.0304 ± 0.002
 | single_temperature=~123 [[kelvin|K]]
 | observation_arc=63.01 yr (23014 days)
 | uncertainty=0
 | arg_peri=95.3858°
 | mean_motion={{Deg2DMS|0.0848323|sup=ms}} / day
 | rotation={{Convert|7.24|h|d|abbr=on|lk=on}}
 | mean_radius=45.83 ± 1.55 [[Kilometre|km]]
 | moid={{Convert|3.80009|AU|Gm|abbr=on}}
 | jupiter_moid={{Convert|0.118209|AU|Gm|abbr=on}}
 | tisserand=2.937
}}
'''2456 Palamedes''' is a [[Jupiter Trojan]] asteroid that orbits in the {{L4}} [[Lagrangian point]] of the [[Sun]]-[[Jupiter]] system, in the [[List of Trojan asteroids (Greek camp)|"Greek Camp"]] of Trojan asteroids. It was named after the [[Ancient Greece|Greek]] hero [[Palamedes (Greek mythology)|Palamedes]]. It was discovered by the [[Purple Mountain Observatory]] in [[Nanjing]], [[China]] on January 30, 1966.

[[Photometry (astronomy)|Photometric]] observations of this asteroid during 1995 were used to build a [[light curve]] showing a [[rotation period]] of 7.258 ± 0.004hours with a brightness variation of 0.05 ± 0.01 [[Magnitude (astronomy)|magnitude]].<ref name="AJ141_5_170"/>

==References==
{{reflist|refs=
<ref name="AJ141_5_170">{{Cite journal | last1 = Mottola | first1 = Stefano| last2 = Di Martino | first2 = Mario| last3 = Erikson | first3 = Anders| last4 = Gonano-Beurer | first4 = Maria| last5 = Carbognani | first5 = Albino| last6 = Carsenty | first6 = Uri| last7 = Hahn | first7 = Gerhard | last8 = Schober | first8 = Hans-Josef| last9 = Lahulla | first9 = Felix| last10 = Delbò | first10 = Marco| last11 = Lagerkvist | first11 = Claes-Ingvar| doi = 10.1088/0004-6256/141/5/170 | title = Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects | journal = [[The Astronomical Journal]] | volume = 141 | issue = 5 | pages = 170 | date = May 2011 | bibcode = 2011AJ....141..170M | pmid =  | pmc = }}</ref>
}}

==External links==
* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2456;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2456 Ephemeris]
* {{JPL small body}}

{{Minor planets navigator|2455 Somville|number=2456|2457 Rublyov}}
{{Small Solar System bodies}}

{{DEFAULTSORT:Palamedes}}
[[Category:Jupiter trojans (Greek camp)|002456]]
[[Category:Minor planets named from Greek mythology]]
[[Category:Named minor planets]]
[[Category:Numbered minor planets|002456]]
[[Category:Astronomical objects discovered in 1966|19660130]]
[[Category:Discoveries by the Purple Mountain Observatory|002456]]